The iPhone now represents almost exactly one third of all touchscreen phones in the US, new comScore info says. Of all touch phones in the country, 32.9 percent are iPhones while all others trail significantly behind. Most of the runners-up are Verizon devices and include the LG Dare and Voyager at 8.7 and 7.8 percent respectively. The BlackBerry Storm has just seven percent, while the T-Mobile G1 is both the most popular Android and T-Mobile phone on the list with 3.6 percent.

Apple's success comes as the touchscreen field itself has swelled dramatically in the past year. The number of phones in American hands has jumped 159 percent from 9.22 million in August 2008 to 23.84 million just one year later. By comparison, the entire US smartphone market grew by 63 percent to 33.78 million, or enough for touchscreen phones to represent a large section of the smartphone business where they were just a minority before.